论文部分内容阅读
据了解,鸟巢目前已经完成了基础桩施工,即将转入基础地板和地下室工程施工。经过不断优化的鸟巢,局部已经有了变化,最明显的是由于原设计的可开启的顶盖取消了以后,鸟巢椭圆形的开口东西方向的半径加大了20m,座席数也由原来的10万个减少到9.1万个。此外,钢结构用钢量从原设计的5.38万吨减少到4.18万吨。开口的增大也使膜结构由原来的6.9万 m~2减少到 6万 m~2。
It is understood that the nest has completed the foundation pile construction, will soon be transferred to the basement and basement construction. After the continuous optimization of the nest, the local has changed, the most obvious is the original design can be opened after the cancellation of the roof, the opening of the oval-shaped bird's nest in the direction of the radius increased by 20m, the number of seats from the original 10 Thousands reduced to 91,000. In addition, the amount of steel used in steel structure was reduced from 53,800 tons to 48,100 tons. The increase of the opening also reduces the membrane structure from 69,000 m ~ 2 to 60,000 m ~ 2.